68e8e04e93
o major overhaul of the way channels are handled: channels are now
fully enumerated and uniquely identify the operating characteristics;
these changes are visible to user applications which require changes
o make scanning support independent of the state machine to enable
background scanning and roaming
o move scanning support into loadable modules based on the operating
mode to enable different policies and reduce the memory footprint
on systems w/ constrained resources
o add background scanning in station mode (no support for adhoc/ibss
mode yet)
o significantly speedup sta mode scanning with a variety of techniques
o add roaming support when background scanning is supported; for now
we use a simple algorithm to trigger a roam: we threshold the rssi
and tx rate, if either drops too low we try to roam to a new ap
o add tx fragmentation support
o add first cut at 802.11n support: this code works with forthcoming
drivers but is incomplete; it's included now to establish a baseline
for other drivers to be developed and for user applications
o adjust max_linkhdr et. al. to reflect 802.11 requirements; this eliminates
prepending mbufs for traffic generated locally
o add support for Atheros protocol extensions; mainly the fast frames
encapsulation (note this can be used with any card that can tx+rx
large frames correctly)
o add sta support for ap's that beacon both WPA1+2 support
o change all data types from bsd-style to posix-style
o propagate noise floor data from drivers to net80211 and on to user apps
o correct various issues in the sta mode state machine related to handling
authentication and association failures
o enable the addition of sta mode power save support for drivers that need
net80211 support (not in this commit)
o remove old WI compatibility ioctls (wicontrol is officially dead)
o change the data structures returned for get sta info and get scan
results so future additions will not break user apps
o fixed tx rate is now maintained internally as an ieee rate and not an
index into the rate set; this needs to be extended to deal with
multi-mode operation
o add extended channel specifications to radiotap to enable 11n sniffing
Drivers:
o ath: add support for bg scanning, tx fragmentation, fast frames,
dynamic turbo (lightly tested), 11n (sniffing only and needs
new hal)
o awi: compile tested only
o ndis: lightly tested
o ipw: lightly tested
o iwi: add support for bg scanning (well tested but may have some
rough edges)
o ral, ural, rum: add suppoort for bg scanning, calibrate rssi data
o wi: lightly tested
This work is based on contributions by Atheros, kmacy, sephe, thompsa,
mlaier, kevlo, and others. Much of the scanning work was supported by
Atheros. The 11n work was supported by Marvell.
2481 lines
61 KiB
C
2481 lines
61 KiB
C
/* $FreeBSD$ */
|
|
|
|
/*-
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* Copyright (c) 2005, 2006
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* Damien Bergamini <damien.bergamini@free.fr>
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*
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* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
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* copyright notice and this permission notice appear in all copies.
|
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*
|
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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|
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/*-
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* Ralink Technology RT2500USB chipset driver
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* http://www.ralinktech.com/
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*/
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#include <sys/param.h>
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#include <sys/sysctl.h>
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#include <sys/sockio.h>
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#include <sys/mbuf.h>
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#include <sys/kernel.h>
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#include <sys/socket.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/endian.h>
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|
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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|
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#include <net/bpf.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <net/ethernet.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <net/if_types.h>
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|
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_amrr.h>
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#include <net80211/ieee80211_radiotap.h>
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#include <net80211/ieee80211_regdomain.h>
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|
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#include <dev/usb/usb.h>
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#include <dev/usb/usbdi.h>
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#include <dev/usb/usbdi_util.h>
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#include "usbdevs.h"
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#include <dev/usb/if_uralreg.h>
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#include <dev/usb/if_uralvar.h>
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|
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#ifdef USB_DEBUG
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#define DPRINTF(x) do { if (uraldebug > 0) logprintf x; } while (0)
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#define DPRINTFN(n, x) do { if (uraldebug >= (n)) logprintf x; } while (0)
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int uraldebug = 0;
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SYSCTL_NODE(_hw_usb, OID_AUTO, ural, CTLFLAG_RW, 0, "USB ural");
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SYSCTL_INT(_hw_usb_ural, OID_AUTO, debug, CTLFLAG_RW, &uraldebug, 0,
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"ural debug level");
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#else
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#define DPRINTF(x)
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#define DPRINTFN(n, x)
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#endif
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|
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#define URAL_RSSI(rssi) \
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((rssi) > (RAL_NOISE_FLOOR + RAL_RSSI_CORR) ? \
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((rssi) - RAL_NOISE_FLOOR + RAL_RSSI_CORR) : 0)
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|
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/* various supported device vendors/products */
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static const struct usb_devno ural_devs[] = {
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{ USB_VENDOR_ASUS, USB_PRODUCT_ASUS_WL167G },
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{ USB_VENDOR_ASUS, USB_PRODUCT_RALINK_RT2570 },
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{ USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D7050 },
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{ USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D7051 },
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{ USB_VENDOR_CONCEPTRONIC2, USB_PRODUCT_CONCEPTRONIC2_C54RU },
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{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DWLG122 },
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{ USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNWBKG },
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{ USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GN54G },
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{ USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWGUSB254 },
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{ USB_VENDOR_LINKSYS4, USB_PRODUCT_LINKSYS4_WUSB54G },
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{ USB_VENDOR_LINKSYS4, USB_PRODUCT_LINKSYS4_WUSB54GP },
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{ USB_VENDOR_LINKSYS4, USB_PRODUCT_LINKSYS4_HU200TS },
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{ USB_VENDOR_MELCO, USB_PRODUCT_MELCO_KG54 },
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{ USB_VENDOR_MELCO, USB_PRODUCT_MELCO_KG54AI },
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{ USB_VENDOR_MELCO, USB_PRODUCT_MELCO_KG54YB },
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{ USB_VENDOR_MELCO, USB_PRODUCT_MELCO_NINWIFI },
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{ USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2570 },
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{ USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2570_2 },
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{ USB_VENDOR_MSI, USB_PRODUCT_MSI_RT2570_3 },
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{ USB_VENDOR_NOVATECH, USB_PRODUCT_NOVATECH_NV902 },
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{ USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2570 },
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{ USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2570_2 },
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{ USB_VENDOR_RALINK, USB_PRODUCT_RALINK_RT2570_3 },
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{ USB_VENDOR_SIEMENS3, USB_PRODUCT_SIEMENS3_WL54G },
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{ USB_VENDOR_SMC, USB_PRODUCT_SMC_2862WG },
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{ USB_VENDOR_SPAIRON, USB_PRODUCT_SPAIRON_WL54G },
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{ USB_VENDOR_VTECH, USB_PRODUCT_VTECH_RT2570 },
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{ USB_VENDOR_ZINWELL, USB_PRODUCT_ZINWELL_RT2570 }
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};
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MODULE_DEPEND(ural, wlan, 1, 1, 1);
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MODULE_DEPEND(ural, wlan_amrr, 1, 1, 1);
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static int ural_alloc_tx_list(struct ural_softc *);
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static void ural_free_tx_list(struct ural_softc *);
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static int ural_alloc_rx_list(struct ural_softc *);
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static void ural_free_rx_list(struct ural_softc *);
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static int ural_media_change(struct ifnet *);
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static void ural_task(void *);
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static void ural_scantask(void *);
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static int ural_newstate(struct ieee80211com *,
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enum ieee80211_state, int);
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static int ural_rxrate(struct ural_rx_desc *);
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static void ural_txeof(usbd_xfer_handle, usbd_private_handle,
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usbd_status);
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static void ural_rxeof(usbd_xfer_handle, usbd_private_handle,
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usbd_status);
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static int ural_ack_rate(struct ieee80211com *, int);
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static uint16_t ural_txtime(int, int, uint32_t);
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static uint8_t ural_plcp_signal(int);
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static void ural_setup_tx_desc(struct ural_softc *,
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struct ural_tx_desc *, uint32_t, int, int);
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static int ural_tx_bcn(struct ural_softc *, struct mbuf *,
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struct ieee80211_node *);
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static int ural_tx_mgt(struct ural_softc *, struct mbuf *,
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struct ieee80211_node *);
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static int ural_tx_data(struct ural_softc *, struct mbuf *,
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struct ieee80211_node *);
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static void ural_start(struct ifnet *);
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static void ural_watchdog(void *);
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static int ural_reset(struct ifnet *);
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static int ural_ioctl(struct ifnet *, u_long, caddr_t);
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static void ural_set_testmode(struct ural_softc *);
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static void ural_eeprom_read(struct ural_softc *, uint16_t, void *,
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int);
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static uint16_t ural_read(struct ural_softc *, uint16_t);
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static void ural_read_multi(struct ural_softc *, uint16_t, void *,
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int);
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static void ural_write(struct ural_softc *, uint16_t, uint16_t);
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static void ural_write_multi(struct ural_softc *, uint16_t, void *,
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int) __unused;
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static void ural_bbp_write(struct ural_softc *, uint8_t, uint8_t);
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static uint8_t ural_bbp_read(struct ural_softc *, uint8_t);
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static void ural_rf_write(struct ural_softc *, uint8_t, uint32_t);
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static void ural_scan_start(struct ieee80211com *);
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static void ural_scan_end(struct ieee80211com *);
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static void ural_set_channel(struct ieee80211com *);
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static void ural_set_chan(struct ural_softc *,
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struct ieee80211_channel *);
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static void ural_disable_rf_tune(struct ural_softc *);
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static void ural_enable_tsf_sync(struct ural_softc *);
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static void ural_update_slot(struct ifnet *);
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static void ural_set_txpreamble(struct ural_softc *);
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static void ural_set_basicrates(struct ural_softc *);
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static void ural_set_bssid(struct ural_softc *, const uint8_t *);
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static void ural_set_macaddr(struct ural_softc *, uint8_t *);
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static void ural_update_promisc(struct ural_softc *);
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static const char *ural_get_rf(int);
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static void ural_read_eeprom(struct ural_softc *);
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static int ural_bbp_init(struct ural_softc *);
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static void ural_set_txantenna(struct ural_softc *, int);
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static void ural_set_rxantenna(struct ural_softc *, int);
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static void ural_init(void *);
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static void ural_stop(void *);
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static int ural_raw_xmit(struct ieee80211_node *, struct mbuf *,
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const struct ieee80211_bpf_params *);
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static void ural_amrr_start(struct ural_softc *,
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struct ieee80211_node *);
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static void ural_amrr_timeout(void *);
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static void ural_amrr_update(usbd_xfer_handle, usbd_private_handle,
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usbd_status status);
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|
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/*
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* Default values for MAC registers; values taken from the reference driver.
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*/
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static const struct {
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uint16_t reg;
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uint16_t val;
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} ural_def_mac[] = {
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{ RAL_TXRX_CSR5, 0x8c8d },
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{ RAL_TXRX_CSR6, 0x8b8a },
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{ RAL_TXRX_CSR7, 0x8687 },
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{ RAL_TXRX_CSR8, 0x0085 },
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{ RAL_MAC_CSR13, 0x1111 },
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{ RAL_MAC_CSR14, 0x1e11 },
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{ RAL_TXRX_CSR21, 0xe78f },
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{ RAL_MAC_CSR9, 0xff1d },
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{ RAL_MAC_CSR11, 0x0002 },
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{ RAL_MAC_CSR22, 0x0053 },
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{ RAL_MAC_CSR15, 0x0000 },
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{ RAL_MAC_CSR8, 0x0780 },
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{ RAL_TXRX_CSR19, 0x0000 },
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{ RAL_TXRX_CSR18, 0x005a },
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{ RAL_PHY_CSR2, 0x0000 },
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{ RAL_TXRX_CSR0, 0x1ec0 },
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{ RAL_PHY_CSR4, 0x000f }
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|
};
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|
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/*
|
|
* Default values for BBP registers; values taken from the reference driver.
|
|
*/
|
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static const struct {
|
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uint8_t reg;
|
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uint8_t val;
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|
} ural_def_bbp[] = {
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{ 3, 0x02 },
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|
{ 4, 0x19 },
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{ 14, 0x1c },
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{ 15, 0x30 },
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{ 16, 0xac },
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{ 17, 0x48 },
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{ 18, 0x18 },
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{ 19, 0xff },
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{ 20, 0x1e },
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{ 21, 0x08 },
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{ 22, 0x08 },
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{ 23, 0x08 },
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{ 24, 0x80 },
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{ 25, 0x50 },
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{ 26, 0x08 },
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{ 27, 0x23 },
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{ 30, 0x10 },
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{ 31, 0x2b },
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{ 32, 0xb9 },
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{ 34, 0x12 },
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{ 35, 0x50 },
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{ 39, 0xc4 },
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{ 40, 0x02 },
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{ 41, 0x60 },
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{ 53, 0x10 },
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{ 54, 0x18 },
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{ 56, 0x08 },
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{ 57, 0x10 },
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{ 58, 0x08 },
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{ 61, 0x60 },
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{ 62, 0x10 },
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|
{ 75, 0xff }
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|
};
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|
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/*
|
|
* Default values for RF register R2 indexed by channel numbers.
|
|
*/
|
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static const uint32_t ural_rf2522_r2[] = {
|
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0x307f6, 0x307fb, 0x30800, 0x30805, 0x3080a, 0x3080f, 0x30814,
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0x30819, 0x3081e, 0x30823, 0x30828, 0x3082d, 0x30832, 0x3083e
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};
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|
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static const uint32_t ural_rf2523_r2[] = {
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0x00327, 0x00328, 0x00329, 0x0032a, 0x0032b, 0x0032c, 0x0032d,
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0x0032e, 0x0032f, 0x00340, 0x00341, 0x00342, 0x00343, 0x00346
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};
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|
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static const uint32_t ural_rf2524_r2[] = {
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0x00327, 0x00328, 0x00329, 0x0032a, 0x0032b, 0x0032c, 0x0032d,
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0x0032e, 0x0032f, 0x00340, 0x00341, 0x00342, 0x00343, 0x00346
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};
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|
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static const uint32_t ural_rf2525_r2[] = {
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0x20327, 0x20328, 0x20329, 0x2032a, 0x2032b, 0x2032c, 0x2032d,
|
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0x2032e, 0x2032f, 0x20340, 0x20341, 0x20342, 0x20343, 0x20346
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};
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|
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static const uint32_t ural_rf2525_hi_r2[] = {
|
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0x2032f, 0x20340, 0x20341, 0x20342, 0x20343, 0x20344, 0x20345,
|
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0x20346, 0x20347, 0x20348, 0x20349, 0x2034a, 0x2034b, 0x2034e
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};
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|
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static const uint32_t ural_rf2525e_r2[] = {
|
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0x2044d, 0x2044e, 0x2044f, 0x20460, 0x20461, 0x20462, 0x20463,
|
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0x20464, 0x20465, 0x20466, 0x20467, 0x20468, 0x20469, 0x2046b
|
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};
|
|
|
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static const uint32_t ural_rf2526_hi_r2[] = {
|
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0x0022a, 0x0022b, 0x0022b, 0x0022c, 0x0022c, 0x0022d, 0x0022d,
|
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0x0022e, 0x0022e, 0x0022f, 0x0022d, 0x00240, 0x00240, 0x00241
|
|
};
|
|
|
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static const uint32_t ural_rf2526_r2[] = {
|
|
0x00226, 0x00227, 0x00227, 0x00228, 0x00228, 0x00229, 0x00229,
|
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0x0022a, 0x0022a, 0x0022b, 0x0022b, 0x0022c, 0x0022c, 0x0022d
|
|
};
|
|
|
|
/*
|
|
* For dual-band RF, RF registers R1 and R4 also depend on channel number;
|
|
* values taken from the reference driver.
|
|
*/
|
|
static const struct {
|
|
uint8_t chan;
|
|
uint32_t r1;
|
|
uint32_t r2;
|
|
uint32_t r4;
|
|
} ural_rf5222[] = {
|
|
{ 1, 0x08808, 0x0044d, 0x00282 },
|
|
{ 2, 0x08808, 0x0044e, 0x00282 },
|
|
{ 3, 0x08808, 0x0044f, 0x00282 },
|
|
{ 4, 0x08808, 0x00460, 0x00282 },
|
|
{ 5, 0x08808, 0x00461, 0x00282 },
|
|
{ 6, 0x08808, 0x00462, 0x00282 },
|
|
{ 7, 0x08808, 0x00463, 0x00282 },
|
|
{ 8, 0x08808, 0x00464, 0x00282 },
|
|
{ 9, 0x08808, 0x00465, 0x00282 },
|
|
{ 10, 0x08808, 0x00466, 0x00282 },
|
|
{ 11, 0x08808, 0x00467, 0x00282 },
|
|
{ 12, 0x08808, 0x00468, 0x00282 },
|
|
{ 13, 0x08808, 0x00469, 0x00282 },
|
|
{ 14, 0x08808, 0x0046b, 0x00286 },
|
|
|
|
{ 36, 0x08804, 0x06225, 0x00287 },
|
|
{ 40, 0x08804, 0x06226, 0x00287 },
|
|
{ 44, 0x08804, 0x06227, 0x00287 },
|
|
{ 48, 0x08804, 0x06228, 0x00287 },
|
|
{ 52, 0x08804, 0x06229, 0x00287 },
|
|
{ 56, 0x08804, 0x0622a, 0x00287 },
|
|
{ 60, 0x08804, 0x0622b, 0x00287 },
|
|
{ 64, 0x08804, 0x0622c, 0x00287 },
|
|
|
|
{ 100, 0x08804, 0x02200, 0x00283 },
|
|
{ 104, 0x08804, 0x02201, 0x00283 },
|
|
{ 108, 0x08804, 0x02202, 0x00283 },
|
|
{ 112, 0x08804, 0x02203, 0x00283 },
|
|
{ 116, 0x08804, 0x02204, 0x00283 },
|
|
{ 120, 0x08804, 0x02205, 0x00283 },
|
|
{ 124, 0x08804, 0x02206, 0x00283 },
|
|
{ 128, 0x08804, 0x02207, 0x00283 },
|
|
{ 132, 0x08804, 0x02208, 0x00283 },
|
|
{ 136, 0x08804, 0x02209, 0x00283 },
|
|
{ 140, 0x08804, 0x0220a, 0x00283 },
|
|
|
|
{ 149, 0x08808, 0x02429, 0x00281 },
|
|
{ 153, 0x08808, 0x0242b, 0x00281 },
|
|
{ 157, 0x08808, 0x0242d, 0x00281 },
|
|
{ 161, 0x08808, 0x0242f, 0x00281 }
|
|
};
|
|
|
|
USB_DECLARE_DRIVER(ural);
|
|
|
|
USB_MATCH(ural)
|
|
{
|
|
USB_MATCH_START(ural, uaa);
|
|
|
|
if (uaa->iface != NULL)
|
|
return UMATCH_NONE;
|
|
|
|
return (usb_lookup(ural_devs, uaa->vendor, uaa->product) != NULL) ?
|
|
UMATCH_VENDOR_PRODUCT : UMATCH_NONE;
|
|
}
|
|
|
|
USB_ATTACH(ural)
|
|
{
|
|
USB_ATTACH_START(ural, sc, uaa);
|
|
struct ifnet *ifp;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
usb_interface_descriptor_t *id;
|
|
usb_endpoint_descriptor_t *ed;
|
|
usbd_status error;
|
|
int i, bands;
|
|
|
|
sc->sc_udev = uaa->device;
|
|
sc->sc_dev = self;
|
|
|
|
if (usbd_set_config_no(sc->sc_udev, RAL_CONFIG_NO, 0) != 0) {
|
|
printf("%s: could not set configuration no\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
USB_ATTACH_ERROR_RETURN;
|
|
}
|
|
|
|
/* get the first interface handle */
|
|
error = usbd_device2interface_handle(sc->sc_udev, RAL_IFACE_INDEX,
|
|
&sc->sc_iface);
|
|
if (error != 0) {
|
|
printf("%s: could not get interface handle\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
USB_ATTACH_ERROR_RETURN;
|
|
}
|
|
|
|
/*
|
|
* Find endpoints.
|
|
*/
|
|
id = usbd_get_interface_descriptor(sc->sc_iface);
|
|
|
|
sc->sc_rx_no = sc->sc_tx_no = -1;
|
|
for (i = 0; i < id->bNumEndpoints; i++) {
|
|
ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
|
|
if (ed == NULL) {
|
|
printf("%s: no endpoint descriptor for %d\n",
|
|
device_get_nameunit(sc->sc_dev), i);
|
|
USB_ATTACH_ERROR_RETURN;
|
|
}
|
|
|
|
if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
|
|
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK)
|
|
sc->sc_rx_no = ed->bEndpointAddress;
|
|
else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
|
|
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK)
|
|
sc->sc_tx_no = ed->bEndpointAddress;
|
|
}
|
|
if (sc->sc_rx_no == -1 || sc->sc_tx_no == -1) {
|
|
printf("%s: missing endpoint\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
USB_ATTACH_ERROR_RETURN;
|
|
}
|
|
|
|
mtx_init(&sc->sc_mtx, device_get_nameunit(sc->sc_dev), MTX_NETWORK_LOCK,
|
|
MTX_DEF | MTX_RECURSE);
|
|
|
|
usb_init_task(&sc->sc_task, ural_task, sc);
|
|
usb_init_task(&sc->sc_scantask, ural_scantask, sc);
|
|
callout_init(&sc->watchdog_ch, 0);
|
|
callout_init(&sc->amrr_ch, 0);
|
|
|
|
/* retrieve RT2570 rev. no */
|
|
sc->asic_rev = ural_read(sc, RAL_MAC_CSR0);
|
|
|
|
/* retrieve MAC address and various other things from EEPROM */
|
|
ural_read_eeprom(sc);
|
|
|
|
printf("%s: MAC/BBP RT2570 (rev 0x%02x), RF %s\n",
|
|
device_get_nameunit(sc->sc_dev), sc->asic_rev,
|
|
ural_get_rf(sc->rf_rev));
|
|
|
|
ifp = sc->sc_ifp = if_alloc(IFT_ETHER);
|
|
if (ifp == NULL) {
|
|
printf("%s: can not if_alloc()\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
USB_ATTACH_ERROR_RETURN;
|
|
}
|
|
|
|
ifp->if_softc = sc;
|
|
if_initname(ifp, "ural", device_get_unit(sc->sc_dev));
|
|
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST |
|
|
IFF_NEEDSGIANT; /* USB stack is still under Giant lock */
|
|
ifp->if_init = ural_init;
|
|
ifp->if_ioctl = ural_ioctl;
|
|
ifp->if_start = ural_start;
|
|
IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
|
|
ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
|
|
IFQ_SET_READY(&ifp->if_snd);
|
|
|
|
ic->ic_ifp = ifp;
|
|
ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
|
|
ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
|
|
ic->ic_state = IEEE80211_S_INIT;
|
|
|
|
/* set device capabilities */
|
|
ic->ic_caps =
|
|
IEEE80211_C_IBSS /* IBSS mode supported */
|
|
| IEEE80211_C_MONITOR /* monitor mode supported */
|
|
| IEEE80211_C_HOSTAP /* HostAp mode supported */
|
|
| IEEE80211_C_TXPMGT /* tx power management */
|
|
| IEEE80211_C_SHPREAMBLE /* short preamble supported */
|
|
| IEEE80211_C_SHSLOT /* short slot time supported */
|
|
| IEEE80211_C_BGSCAN /* bg scanning supported */
|
|
| IEEE80211_C_WPA /* 802.11i */
|
|
;
|
|
|
|
bands = 0;
|
|
setbit(&bands, IEEE80211_MODE_11B);
|
|
setbit(&bands, IEEE80211_MODE_11G);
|
|
if (sc->rf_rev == RAL_RF_5222)
|
|
setbit(&bands, IEEE80211_MODE_11A);
|
|
ieee80211_init_channels(ic, 0, CTRY_DEFAULT, bands, 0, 1);
|
|
|
|
ieee80211_ifattach(ic);
|
|
ic->ic_reset = ural_reset;
|
|
/* enable s/w bmiss handling in sta mode */
|
|
ic->ic_flags_ext |= IEEE80211_FEXT_SWBMISS;
|
|
ic->ic_scan_start = ural_scan_start;
|
|
ic->ic_scan_end = ural_scan_end;
|
|
ic->ic_set_channel = ural_set_channel;
|
|
|
|
/* override state transition machine */
|
|
sc->sc_newstate = ic->ic_newstate;
|
|
ic->ic_newstate = ural_newstate;
|
|
ic->ic_raw_xmit = ural_raw_xmit;
|
|
ieee80211_media_init(ic, ural_media_change, ieee80211_media_status);
|
|
|
|
ieee80211_amrr_init(&sc->amrr, ic,
|
|
IEEE80211_AMRR_MIN_SUCCESS_THRESHOLD,
|
|
IEEE80211_AMRR_MAX_SUCCESS_THRESHOLD);
|
|
|
|
bpfattach2(ifp, DLT_IEEE802_11_RADIO,
|
|
sizeof (struct ieee80211_frame) + 64, &sc->sc_drvbpf);
|
|
|
|
sc->sc_rxtap_len = sizeof sc->sc_rxtapu;
|
|
sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len);
|
|
sc->sc_rxtap.wr_ihdr.it_present = htole32(RAL_RX_RADIOTAP_PRESENT);
|
|
|
|
sc->sc_txtap_len = sizeof sc->sc_txtapu;
|
|
sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len);
|
|
sc->sc_txtap.wt_ihdr.it_present = htole32(RAL_TX_RADIOTAP_PRESENT);
|
|
|
|
if (bootverbose)
|
|
ieee80211_announce(ic);
|
|
|
|
USB_ATTACH_SUCCESS_RETURN;
|
|
}
|
|
|
|
USB_DETACH(ural)
|
|
{
|
|
USB_DETACH_START(ural, sc);
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
|
|
ural_stop(sc);
|
|
usb_rem_task(sc->sc_udev, &sc->sc_task);
|
|
callout_stop(&sc->watchdog_ch);
|
|
callout_stop(&sc->amrr_ch);
|
|
|
|
if (sc->amrr_xfer != NULL) {
|
|
usbd_free_xfer(sc->amrr_xfer);
|
|
sc->amrr_xfer = NULL;
|
|
}
|
|
|
|
if (sc->sc_rx_pipeh != NULL) {
|
|
usbd_abort_pipe(sc->sc_rx_pipeh);
|
|
usbd_close_pipe(sc->sc_rx_pipeh);
|
|
}
|
|
|
|
if (sc->sc_tx_pipeh != NULL) {
|
|
usbd_abort_pipe(sc->sc_tx_pipeh);
|
|
usbd_close_pipe(sc->sc_tx_pipeh);
|
|
}
|
|
|
|
ural_free_rx_list(sc);
|
|
ural_free_tx_list(sc);
|
|
|
|
bpfdetach(ifp);
|
|
ieee80211_ifdetach(ic);
|
|
if_free(ifp);
|
|
|
|
mtx_destroy(&sc->sc_mtx);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ural_alloc_tx_list(struct ural_softc *sc)
|
|
{
|
|
struct ural_tx_data *data;
|
|
int i, error;
|
|
|
|
sc->tx_queued = 0;
|
|
|
|
for (i = 0; i < RAL_TX_LIST_COUNT; i++) {
|
|
data = &sc->tx_data[i];
|
|
|
|
data->sc = sc;
|
|
|
|
data->xfer = usbd_alloc_xfer(sc->sc_udev);
|
|
if (data->xfer == NULL) {
|
|
printf("%s: could not allocate tx xfer\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
error = ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
data->buf = usbd_alloc_buffer(data->xfer,
|
|
RAL_TX_DESC_SIZE + MCLBYTES);
|
|
if (data->buf == NULL) {
|
|
printf("%s: could not allocate tx buffer\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
error = ENOMEM;
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
fail: ural_free_tx_list(sc);
|
|
return error;
|
|
}
|
|
|
|
static void
|
|
ural_free_tx_list(struct ural_softc *sc)
|
|
{
|
|
struct ural_tx_data *data;
|
|
int i;
|
|
|
|
for (i = 0; i < RAL_TX_LIST_COUNT; i++) {
|
|
data = &sc->tx_data[i];
|
|
|
|
if (data->xfer != NULL) {
|
|
usbd_free_xfer(data->xfer);
|
|
data->xfer = NULL;
|
|
}
|
|
|
|
if (data->ni != NULL) {
|
|
ieee80211_free_node(data->ni);
|
|
data->ni = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int
|
|
ural_alloc_rx_list(struct ural_softc *sc)
|
|
{
|
|
struct ural_rx_data *data;
|
|
int i, error;
|
|
|
|
for (i = 0; i < RAL_RX_LIST_COUNT; i++) {
|
|
data = &sc->rx_data[i];
|
|
|
|
data->sc = sc;
|
|
|
|
data->xfer = usbd_alloc_xfer(sc->sc_udev);
|
|
if (data->xfer == NULL) {
|
|
printf("%s: could not allocate rx xfer\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
error = ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
if (usbd_alloc_buffer(data->xfer, MCLBYTES) == NULL) {
|
|
printf("%s: could not allocate rx buffer\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
error = ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
data->m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
|
|
if (data->m == NULL) {
|
|
printf("%s: could not allocate rx mbuf\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
error = ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
data->buf = mtod(data->m, uint8_t *);
|
|
}
|
|
|
|
return 0;
|
|
|
|
fail: ural_free_tx_list(sc);
|
|
return error;
|
|
}
|
|
|
|
static void
|
|
ural_free_rx_list(struct ural_softc *sc)
|
|
{
|
|
struct ural_rx_data *data;
|
|
int i;
|
|
|
|
for (i = 0; i < RAL_RX_LIST_COUNT; i++) {
|
|
data = &sc->rx_data[i];
|
|
|
|
if (data->xfer != NULL) {
|
|
usbd_free_xfer(data->xfer);
|
|
data->xfer = NULL;
|
|
}
|
|
|
|
if (data->m != NULL) {
|
|
m_freem(data->m);
|
|
data->m = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int
|
|
ural_media_change(struct ifnet *ifp)
|
|
{
|
|
struct ural_softc *sc = ifp->if_softc;
|
|
int error;
|
|
|
|
RAL_LOCK(sc);
|
|
|
|
error = ieee80211_media_change(ifp);
|
|
if (error != ENETRESET) {
|
|
RAL_UNLOCK(sc);
|
|
return error;
|
|
}
|
|
|
|
if ((ifp->if_flags & IFF_UP) &&
|
|
(ifp->if_drv_flags & IFF_DRV_RUNNING))
|
|
ural_init(sc);
|
|
|
|
RAL_UNLOCK(sc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
ural_task(void *xarg)
|
|
{
|
|
struct ural_softc *sc = xarg;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
enum ieee80211_state ostate;
|
|
struct ieee80211_node *ni;
|
|
struct mbuf *m;
|
|
|
|
ostate = ic->ic_state;
|
|
|
|
RAL_LOCK(sc);
|
|
switch (sc->sc_state) {
|
|
case IEEE80211_S_INIT:
|
|
if (ostate == IEEE80211_S_RUN) {
|
|
/* abort TSF synchronization */
|
|
ural_write(sc, RAL_TXRX_CSR19, 0);
|
|
|
|
/* force tx led to stop blinking */
|
|
ural_write(sc, RAL_MAC_CSR20, 0);
|
|
}
|
|
break;
|
|
|
|
case IEEE80211_S_RUN:
|
|
ni = ic->ic_bss;
|
|
|
|
if (ic->ic_opmode != IEEE80211_M_MONITOR) {
|
|
ural_update_slot(ic->ic_ifp);
|
|
ural_set_txpreamble(sc);
|
|
ural_set_basicrates(sc);
|
|
ural_set_bssid(sc, ni->ni_bssid);
|
|
}
|
|
|
|
if (ic->ic_opmode == IEEE80211_M_HOSTAP ||
|
|
ic->ic_opmode == IEEE80211_M_IBSS) {
|
|
m = ieee80211_beacon_alloc(ic, ni, &sc->sc_bo);
|
|
if (m == NULL) {
|
|
printf("%s: could not allocate beacon\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
return;
|
|
}
|
|
|
|
if (ural_tx_bcn(sc, m, ni) != 0) {
|
|
printf("%s: could not send beacon\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* make tx led blink on tx (controlled by ASIC) */
|
|
ural_write(sc, RAL_MAC_CSR20, 1);
|
|
|
|
if (ic->ic_opmode != IEEE80211_M_MONITOR)
|
|
ural_enable_tsf_sync(sc);
|
|
|
|
/* enable automatic rate adaptation in STA mode */
|
|
if (ic->ic_opmode == IEEE80211_M_STA &&
|
|
ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE)
|
|
ural_amrr_start(sc, ni);
|
|
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
RAL_UNLOCK(sc);
|
|
sc->sc_newstate(ic, sc->sc_state, sc->sc_arg);
|
|
}
|
|
|
|
static void
|
|
ural_scantask(void *arg)
|
|
{
|
|
struct ural_softc *sc = arg;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
|
|
RAL_LOCK(sc);
|
|
if (sc->sc_scan_action == URAL_SCAN_START) {
|
|
/* abort TSF synchronization */
|
|
ural_write(sc, RAL_TXRX_CSR19, 0);
|
|
ural_set_bssid(sc, ifp->if_broadcastaddr);
|
|
} else if (sc->sc_scan_action == URAL_SET_CHANNEL) {
|
|
mtx_lock(&Giant);
|
|
ural_set_chan(sc, ic->ic_curchan);
|
|
mtx_unlock(&Giant);
|
|
} else {
|
|
ural_enable_tsf_sync(sc);
|
|
/* XXX keep local copy */
|
|
ural_set_bssid(sc, ic->ic_bss->ni_bssid);
|
|
}
|
|
RAL_UNLOCK(sc);
|
|
}
|
|
|
|
static int
|
|
ural_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
|
|
{
|
|
struct ural_softc *sc = ic->ic_ifp->if_softc;
|
|
|
|
callout_stop(&sc->amrr_ch);
|
|
|
|
/* do it in a process context */
|
|
sc->sc_state = nstate;
|
|
sc->sc_arg = arg;
|
|
|
|
usb_rem_task(sc->sc_udev, &sc->sc_task);
|
|
if (nstate == IEEE80211_S_INIT)
|
|
sc->sc_newstate(ic, nstate, arg);
|
|
else
|
|
usb_add_task(sc->sc_udev, &sc->sc_task, USB_TASKQ_DRIVER);
|
|
return 0;
|
|
}
|
|
|
|
/* quickly determine if a given rate is CCK or OFDM */
|
|
#define RAL_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22)
|
|
|
|
#define RAL_ACK_SIZE 14 /* 10 + 4(FCS) */
|
|
#define RAL_CTS_SIZE 14 /* 10 + 4(FCS) */
|
|
|
|
#define RAL_SIFS 10 /* us */
|
|
|
|
#define RAL_RXTX_TURNAROUND 5 /* us */
|
|
|
|
/*
|
|
* This function is only used by the Rx radiotap code.
|
|
*/
|
|
static int
|
|
ural_rxrate(struct ural_rx_desc *desc)
|
|
{
|
|
if (le32toh(desc->flags) & RAL_RX_OFDM) {
|
|
/* reverse function of ural_plcp_signal */
|
|
switch (desc->rate) {
|
|
case 0xb: return 12;
|
|
case 0xf: return 18;
|
|
case 0xa: return 24;
|
|
case 0xe: return 36;
|
|
case 0x9: return 48;
|
|
case 0xd: return 72;
|
|
case 0x8: return 96;
|
|
case 0xc: return 108;
|
|
}
|
|
} else {
|
|
if (desc->rate == 10)
|
|
return 2;
|
|
if (desc->rate == 20)
|
|
return 4;
|
|
if (desc->rate == 55)
|
|
return 11;
|
|
if (desc->rate == 110)
|
|
return 22;
|
|
}
|
|
return 2; /* should not get there */
|
|
}
|
|
|
|
static void
|
|
ural_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
|
|
{
|
|
struct ural_tx_data *data = priv;
|
|
struct ural_softc *sc = data->sc;
|
|
struct ifnet *ifp = sc->sc_ic.ic_ifp;
|
|
|
|
if (data->m->m_flags & M_TXCB)
|
|
ieee80211_process_callback(data->ni, data->m,
|
|
status == USBD_NORMAL_COMPLETION ? 0 : ETIMEDOUT);
|
|
if (status != USBD_NORMAL_COMPLETION) {
|
|
if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
|
|
return;
|
|
|
|
printf("%s: could not transmit buffer: %s\n",
|
|
device_get_nameunit(sc->sc_dev), usbd_errstr(status));
|
|
|
|
if (status == USBD_STALLED)
|
|
usbd_clear_endpoint_stall_async(sc->sc_rx_pipeh);
|
|
|
|
ifp->if_oerrors++;
|
|
/* XXX mbuf leak? */
|
|
return;
|
|
}
|
|
|
|
m_freem(data->m);
|
|
data->m = NULL;
|
|
ieee80211_free_node(data->ni);
|
|
data->ni = NULL;
|
|
|
|
sc->tx_queued--;
|
|
ifp->if_opackets++;
|
|
|
|
DPRINTFN(10, ("tx done\n"));
|
|
|
|
sc->sc_tx_timer = 0;
|
|
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
|
|
ural_start(ifp);
|
|
}
|
|
|
|
static void
|
|
ural_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
|
|
{
|
|
struct ural_rx_data *data = priv;
|
|
struct ural_softc *sc = data->sc;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
struct ural_rx_desc *desc;
|
|
struct ieee80211_frame *wh;
|
|
struct ieee80211_node *ni;
|
|
struct mbuf *mnew, *m;
|
|
int len;
|
|
|
|
if (status != USBD_NORMAL_COMPLETION) {
|
|
if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
|
|
return;
|
|
|
|
if (status == USBD_STALLED)
|
|
usbd_clear_endpoint_stall_async(sc->sc_rx_pipeh);
|
|
goto skip;
|
|
}
|
|
|
|
usbd_get_xfer_status(xfer, NULL, NULL, &len, NULL);
|
|
|
|
if (len < RAL_RX_DESC_SIZE + IEEE80211_MIN_LEN) {
|
|
DPRINTF(("%s: xfer too short %d\n", device_get_nameunit(sc->sc_dev),
|
|
len));
|
|
ifp->if_ierrors++;
|
|
goto skip;
|
|
}
|
|
|
|
/* rx descriptor is located at the end */
|
|
desc = (struct ural_rx_desc *)(data->buf + len - RAL_RX_DESC_SIZE);
|
|
|
|
if ((le32toh(desc->flags) & RAL_RX_PHY_ERROR) ||
|
|
(le32toh(desc->flags) & RAL_RX_CRC_ERROR)) {
|
|
/*
|
|
* This should not happen since we did not request to receive
|
|
* those frames when we filled RAL_TXRX_CSR2.
|
|
*/
|
|
DPRINTFN(5, ("PHY or CRC error\n"));
|
|
ifp->if_ierrors++;
|
|
goto skip;
|
|
}
|
|
|
|
mnew = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
|
|
if (mnew == NULL) {
|
|
ifp->if_ierrors++;
|
|
goto skip;
|
|
}
|
|
|
|
m = data->m;
|
|
data->m = mnew;
|
|
data->buf = mtod(data->m, uint8_t *);
|
|
|
|
/* finalize mbuf */
|
|
m->m_pkthdr.rcvif = ifp;
|
|
m->m_pkthdr.len = m->m_len = (le32toh(desc->flags) >> 16) & 0xfff;
|
|
|
|
if (bpf_peers_present(sc->sc_drvbpf)) {
|
|
struct ural_rx_radiotap_header *tap = &sc->sc_rxtap;
|
|
|
|
tap->wr_flags = IEEE80211_RADIOTAP_F_FCS;
|
|
tap->wr_rate = ural_rxrate(desc);
|
|
tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq);
|
|
tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags);
|
|
tap->wr_antenna = sc->rx_ant;
|
|
tap->wr_antsignal = URAL_RSSI(desc->rssi);
|
|
|
|
bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m);
|
|
}
|
|
|
|
/* Strip trailing 802.11 MAC FCS. */
|
|
m_adj(m, -IEEE80211_CRC_LEN);
|
|
|
|
wh = mtod(m, struct ieee80211_frame *);
|
|
ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh);
|
|
|
|
/* send the frame to the 802.11 layer */
|
|
ieee80211_input(ic, m, ni, URAL_RSSI(desc->rssi), RAL_NOISE_FLOOR, 0);
|
|
|
|
/* node is no longer needed */
|
|
ieee80211_free_node(ni);
|
|
|
|
DPRINTFN(15, ("rx done\n"));
|
|
|
|
skip: /* setup a new transfer */
|
|
usbd_setup_xfer(xfer, sc->sc_rx_pipeh, data, data->buf, MCLBYTES,
|
|
USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, ural_rxeof);
|
|
usbd_transfer(xfer);
|
|
}
|
|
|
|
/*
|
|
* Return the expected ack rate for a frame transmitted at rate `rate'.
|
|
* XXX: this should depend on the destination node basic rate set.
|
|
*/
|
|
static int
|
|
ural_ack_rate(struct ieee80211com *ic, int rate)
|
|
{
|
|
switch (rate) {
|
|
/* CCK rates */
|
|
case 2:
|
|
return 2;
|
|
case 4:
|
|
case 11:
|
|
case 22:
|
|
return (ic->ic_curmode == IEEE80211_MODE_11B) ? 4 : rate;
|
|
|
|
/* OFDM rates */
|
|
case 12:
|
|
case 18:
|
|
return 12;
|
|
case 24:
|
|
case 36:
|
|
return 24;
|
|
case 48:
|
|
case 72:
|
|
case 96:
|
|
case 108:
|
|
return 48;
|
|
}
|
|
|
|
/* default to 1Mbps */
|
|
return 2;
|
|
}
|
|
|
|
/*
|
|
* Compute the duration (in us) needed to transmit `len' bytes at rate `rate'.
|
|
* The function automatically determines the operating mode depending on the
|
|
* given rate. `flags' indicates whether short preamble is in use or not.
|
|
*/
|
|
static uint16_t
|
|
ural_txtime(int len, int rate, uint32_t flags)
|
|
{
|
|
uint16_t txtime;
|
|
|
|
if (RAL_RATE_IS_OFDM(rate)) {
|
|
/* IEEE Std 802.11a-1999, pp. 37 */
|
|
txtime = (8 + 4 * len + 3 + rate - 1) / rate;
|
|
txtime = 16 + 4 + 4 * txtime + 6;
|
|
} else {
|
|
/* IEEE Std 802.11b-1999, pp. 28 */
|
|
txtime = (16 * len + rate - 1) / rate;
|
|
if (rate != 2 && (flags & IEEE80211_F_SHPREAMBLE))
|
|
txtime += 72 + 24;
|
|
else
|
|
txtime += 144 + 48;
|
|
}
|
|
return txtime;
|
|
}
|
|
|
|
static uint8_t
|
|
ural_plcp_signal(int rate)
|
|
{
|
|
switch (rate) {
|
|
/* CCK rates (returned values are device-dependent) */
|
|
case 2: return 0x0;
|
|
case 4: return 0x1;
|
|
case 11: return 0x2;
|
|
case 22: return 0x3;
|
|
|
|
/* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
|
|
case 12: return 0xb;
|
|
case 18: return 0xf;
|
|
case 24: return 0xa;
|
|
case 36: return 0xe;
|
|
case 48: return 0x9;
|
|
case 72: return 0xd;
|
|
case 96: return 0x8;
|
|
case 108: return 0xc;
|
|
|
|
/* unsupported rates (should not get there) */
|
|
default: return 0xff;
|
|
}
|
|
}
|
|
|
|
static void
|
|
ural_setup_tx_desc(struct ural_softc *sc, struct ural_tx_desc *desc,
|
|
uint32_t flags, int len, int rate)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
uint16_t plcp_length;
|
|
int remainder;
|
|
|
|
desc->flags = htole32(flags);
|
|
desc->flags |= htole32(RAL_TX_NEWSEQ);
|
|
desc->flags |= htole32(len << 16);
|
|
|
|
desc->wme = htole16(RAL_AIFSN(2) | RAL_LOGCWMIN(3) | RAL_LOGCWMAX(5));
|
|
desc->wme |= htole16(RAL_IVOFFSET(sizeof (struct ieee80211_frame)));
|
|
|
|
/* setup PLCP fields */
|
|
desc->plcp_signal = ural_plcp_signal(rate);
|
|
desc->plcp_service = 4;
|
|
|
|
len += IEEE80211_CRC_LEN;
|
|
if (RAL_RATE_IS_OFDM(rate)) {
|
|
desc->flags |= htole32(RAL_TX_OFDM);
|
|
|
|
plcp_length = len & 0xfff;
|
|
desc->plcp_length_hi = plcp_length >> 6;
|
|
desc->plcp_length_lo = plcp_length & 0x3f;
|
|
} else {
|
|
plcp_length = (16 * len + rate - 1) / rate;
|
|
if (rate == 22) {
|
|
remainder = (16 * len) % 22;
|
|
if (remainder != 0 && remainder < 7)
|
|
desc->plcp_service |= RAL_PLCP_LENGEXT;
|
|
}
|
|
desc->plcp_length_hi = plcp_length >> 8;
|
|
desc->plcp_length_lo = plcp_length & 0xff;
|
|
|
|
if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
|
|
desc->plcp_signal |= 0x08;
|
|
}
|
|
|
|
desc->iv = 0;
|
|
desc->eiv = 0;
|
|
}
|
|
|
|
#define RAL_TX_TIMEOUT 5000
|
|
|
|
static int
|
|
ural_tx_bcn(struct ural_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
|
|
{
|
|
struct ural_tx_desc *desc;
|
|
usbd_xfer_handle xfer;
|
|
uint8_t cmd = 0;
|
|
usbd_status error;
|
|
uint8_t *buf;
|
|
int xferlen, rate;
|
|
|
|
rate = IEEE80211_IS_CHAN_5GHZ(ni->ni_chan) ? 12 : 2;
|
|
|
|
xfer = usbd_alloc_xfer(sc->sc_udev);
|
|
if (xfer == NULL)
|
|
return ENOMEM;
|
|
|
|
/* xfer length needs to be a multiple of two! */
|
|
xferlen = (RAL_TX_DESC_SIZE + m0->m_pkthdr.len + 1) & ~1;
|
|
|
|
buf = usbd_alloc_buffer(xfer, xferlen);
|
|
if (buf == NULL) {
|
|
usbd_free_xfer(xfer);
|
|
return ENOMEM;
|
|
}
|
|
|
|
usbd_setup_xfer(xfer, sc->sc_tx_pipeh, NULL, &cmd, sizeof cmd,
|
|
USBD_FORCE_SHORT_XFER, RAL_TX_TIMEOUT, NULL);
|
|
|
|
error = usbd_sync_transfer(xfer);
|
|
if (error != 0) {
|
|
usbd_free_xfer(xfer);
|
|
return error;
|
|
}
|
|
|
|
desc = (struct ural_tx_desc *)buf;
|
|
|
|
m_copydata(m0, 0, m0->m_pkthdr.len, buf + RAL_TX_DESC_SIZE);
|
|
ural_setup_tx_desc(sc, desc, RAL_TX_IFS_NEWBACKOFF | RAL_TX_TIMESTAMP,
|
|
m0->m_pkthdr.len, rate);
|
|
|
|
DPRINTFN(10, ("sending beacon frame len=%u rate=%u xfer len=%u\n",
|
|
m0->m_pkthdr.len, rate, xferlen));
|
|
|
|
usbd_setup_xfer(xfer, sc->sc_tx_pipeh, NULL, buf, xferlen,
|
|
USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RAL_TX_TIMEOUT, NULL);
|
|
|
|
error = usbd_sync_transfer(xfer);
|
|
usbd_free_xfer(xfer);
|
|
|
|
return error;
|
|
}
|
|
|
|
static int
|
|
ural_tx_mgt(struct ural_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ural_tx_desc *desc;
|
|
struct ural_tx_data *data;
|
|
struct ieee80211_frame *wh;
|
|
uint32_t flags = 0;
|
|
uint16_t dur;
|
|
usbd_status error;
|
|
int xferlen, rate;
|
|
|
|
data = &sc->tx_data[0];
|
|
desc = (struct ural_tx_desc *)data->buf;
|
|
|
|
rate = IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan) ? 12 : 2;
|
|
|
|
data->m = m0;
|
|
data->ni = ni;
|
|
|
|
wh = mtod(m0, struct ieee80211_frame *);
|
|
|
|
if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
|
|
flags |= RAL_TX_ACK;
|
|
|
|
dur = ural_txtime(RAL_ACK_SIZE, rate, ic->ic_flags) + RAL_SIFS;
|
|
*(uint16_t *)wh->i_dur = htole16(dur);
|
|
|
|
/* tell hardware to add timestamp for probe responses */
|
|
if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
|
|
IEEE80211_FC0_TYPE_MGT &&
|
|
(wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
|
|
IEEE80211_FC0_SUBTYPE_PROBE_RESP)
|
|
flags |= RAL_TX_TIMESTAMP;
|
|
}
|
|
|
|
if (bpf_peers_present(sc->sc_drvbpf)) {
|
|
struct ural_tx_radiotap_header *tap = &sc->sc_txtap;
|
|
|
|
tap->wt_flags = 0;
|
|
tap->wt_rate = rate;
|
|
tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq);
|
|
tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags);
|
|
tap->wt_antenna = sc->tx_ant;
|
|
|
|
bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0);
|
|
}
|
|
|
|
m_copydata(m0, 0, m0->m_pkthdr.len, data->buf + RAL_TX_DESC_SIZE);
|
|
ural_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate);
|
|
|
|
/* align end on a 2-bytes boundary */
|
|
xferlen = (RAL_TX_DESC_SIZE + m0->m_pkthdr.len + 1) & ~1;
|
|
|
|
/*
|
|
* No space left in the last URB to store the extra 2 bytes, force
|
|
* sending of another URB.
|
|
*/
|
|
if ((xferlen % 64) == 0)
|
|
xferlen += 2;
|
|
|
|
DPRINTFN(10, ("sending mgt frame len=%u rate=%u xfer len=%u\n",
|
|
m0->m_pkthdr.len, rate, xferlen));
|
|
|
|
usbd_setup_xfer(data->xfer, sc->sc_tx_pipeh, data, data->buf,
|
|
xferlen, USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RAL_TX_TIMEOUT,
|
|
ural_txeof);
|
|
|
|
error = usbd_transfer(data->xfer);
|
|
if (error != USBD_NORMAL_COMPLETION && error != USBD_IN_PROGRESS) {
|
|
m_freem(m0);
|
|
data->m = NULL;
|
|
data->ni = NULL;
|
|
return error;
|
|
}
|
|
|
|
sc->tx_queued++;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ural_tx_raw(struct ural_softc *sc, struct mbuf *m0, struct ieee80211_node *ni,
|
|
const struct ieee80211_bpf_params *params)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ural_tx_desc *desc;
|
|
struct ural_tx_data *data;
|
|
uint32_t flags;
|
|
usbd_status error;
|
|
int xferlen, rate;
|
|
|
|
data = &sc->tx_data[0];
|
|
desc = (struct ural_tx_desc *)data->buf;
|
|
|
|
rate = params->ibp_rate0 & IEEE80211_RATE_VAL;
|
|
/* XXX validate */
|
|
if (rate == 0) {
|
|
m_freem(m0);
|
|
return EINVAL;
|
|
}
|
|
|
|
if (bpf_peers_present(sc->sc_drvbpf)) {
|
|
struct ural_tx_radiotap_header *tap = &sc->sc_txtap;
|
|
|
|
tap->wt_flags = 0;
|
|
tap->wt_rate = rate;
|
|
tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq);
|
|
tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags);
|
|
tap->wt_antenna = sc->tx_ant;
|
|
|
|
bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0);
|
|
}
|
|
|
|
data->m = m0;
|
|
data->ni = ni;
|
|
|
|
flags = 0;
|
|
if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
|
|
flags |= RAL_TX_ACK;
|
|
|
|
m_copydata(m0, 0, m0->m_pkthdr.len, data->buf + RAL_TX_DESC_SIZE);
|
|
/* XXX need to setup descriptor ourself */
|
|
ural_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate);
|
|
|
|
/* align end on a 2-bytes boundary */
|
|
xferlen = (RAL_TX_DESC_SIZE + m0->m_pkthdr.len + 1) & ~1;
|
|
|
|
/*
|
|
* No space left in the last URB to store the extra 2 bytes, force
|
|
* sending of another URB.
|
|
*/
|
|
if ((xferlen % 64) == 0)
|
|
xferlen += 2;
|
|
|
|
DPRINTFN(10, ("sending raw frame len=%u rate=%u xfer len=%u\n",
|
|
m0->m_pkthdr.len, rate, xferlen));
|
|
|
|
usbd_setup_xfer(data->xfer, sc->sc_tx_pipeh, data, data->buf,
|
|
xferlen, USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RAL_TX_TIMEOUT,
|
|
ural_txeof);
|
|
|
|
error = usbd_transfer(data->xfer);
|
|
if (error != USBD_NORMAL_COMPLETION && error != USBD_IN_PROGRESS) {
|
|
m_freem(m0);
|
|
data->m = NULL;
|
|
data->ni = NULL;
|
|
return error;
|
|
}
|
|
|
|
sc->tx_queued++;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ural_tx_data(struct ural_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ural_tx_desc *desc;
|
|
struct ural_tx_data *data;
|
|
struct ieee80211_frame *wh;
|
|
struct ieee80211_key *k;
|
|
uint32_t flags = 0;
|
|
uint16_t dur;
|
|
usbd_status error;
|
|
int xferlen, rate;
|
|
|
|
wh = mtod(m0, struct ieee80211_frame *);
|
|
|
|
if (ic->ic_fixed_rate != IEEE80211_FIXED_RATE_NONE)
|
|
rate = ic->ic_fixed_rate;
|
|
else
|
|
rate = ni->ni_rates.rs_rates[ni->ni_txrate];
|
|
|
|
rate &= IEEE80211_RATE_VAL;
|
|
|
|
if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
|
|
k = ieee80211_crypto_encap(ic, ni, m0);
|
|
if (k == NULL) {
|
|
m_freem(m0);
|
|
return ENOBUFS;
|
|
}
|
|
|
|
/* packet header may have moved, reset our local pointer */
|
|
wh = mtod(m0, struct ieee80211_frame *);
|
|
}
|
|
|
|
data = &sc->tx_data[0];
|
|
desc = (struct ural_tx_desc *)data->buf;
|
|
|
|
data->m = m0;
|
|
data->ni = ni;
|
|
|
|
if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
|
|
flags |= RAL_TX_ACK;
|
|
flags |= RAL_TX_RETRY(7);
|
|
|
|
dur = ural_txtime(RAL_ACK_SIZE, ural_ack_rate(ic, rate),
|
|
ic->ic_flags) + RAL_SIFS;
|
|
*(uint16_t *)wh->i_dur = htole16(dur);
|
|
}
|
|
|
|
if (bpf_peers_present(sc->sc_drvbpf)) {
|
|
struct ural_tx_radiotap_header *tap = &sc->sc_txtap;
|
|
|
|
tap->wt_flags = 0;
|
|
tap->wt_rate = rate;
|
|
tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq);
|
|
tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags);
|
|
tap->wt_antenna = sc->tx_ant;
|
|
|
|
bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0);
|
|
}
|
|
|
|
m_copydata(m0, 0, m0->m_pkthdr.len, data->buf + RAL_TX_DESC_SIZE);
|
|
ural_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate);
|
|
|
|
/* align end on a 2-bytes boundary */
|
|
xferlen = (RAL_TX_DESC_SIZE + m0->m_pkthdr.len + 1) & ~1;
|
|
|
|
/*
|
|
* No space left in the last URB to store the extra 2 bytes, force
|
|
* sending of another URB.
|
|
*/
|
|
if ((xferlen % 64) == 0)
|
|
xferlen += 2;
|
|
|
|
DPRINTFN(10, ("sending data frame len=%u rate=%u xfer len=%u\n",
|
|
m0->m_pkthdr.len, rate, xferlen));
|
|
|
|
usbd_setup_xfer(data->xfer, sc->sc_tx_pipeh, data, data->buf,
|
|
xferlen, USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RAL_TX_TIMEOUT,
|
|
ural_txeof);
|
|
|
|
error = usbd_transfer(data->xfer);
|
|
if (error != USBD_NORMAL_COMPLETION && error != USBD_IN_PROGRESS) {
|
|
m_freem(m0);
|
|
data->m = NULL;
|
|
data->ni = NULL;
|
|
return error;
|
|
}
|
|
|
|
sc->tx_queued++;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
ural_start(struct ifnet *ifp)
|
|
{
|
|
struct ural_softc *sc = ifp->if_softc;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct mbuf *m0;
|
|
struct ether_header *eh;
|
|
struct ieee80211_node *ni;
|
|
|
|
for (;;) {
|
|
IF_POLL(&ic->ic_mgtq, m0);
|
|
if (m0 != NULL) {
|
|
if (sc->tx_queued >= RAL_TX_LIST_COUNT) {
|
|
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
|
|
break;
|
|
}
|
|
IF_DEQUEUE(&ic->ic_mgtq, m0);
|
|
|
|
ni = (struct ieee80211_node *)m0->m_pkthdr.rcvif;
|
|
m0->m_pkthdr.rcvif = NULL;
|
|
|
|
if (bpf_peers_present(ic->ic_rawbpf))
|
|
bpf_mtap(ic->ic_rawbpf, m0);
|
|
|
|
if (ural_tx_mgt(sc, m0, ni) != 0) {
|
|
ieee80211_free_node(ni);
|
|
break;
|
|
}
|
|
} else {
|
|
if (ic->ic_state != IEEE80211_S_RUN)
|
|
break;
|
|
IFQ_DRV_DEQUEUE(&ifp->if_snd, m0);
|
|
if (m0 == NULL)
|
|
break;
|
|
if (sc->tx_queued >= RAL_TX_LIST_COUNT) {
|
|
IFQ_DRV_PREPEND(&ifp->if_snd, m0);
|
|
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
|
|
break;
|
|
}
|
|
|
|
if (m0->m_len < sizeof (struct ether_header) &&
|
|
!(m0 = m_pullup(m0, sizeof (struct ether_header))))
|
|
continue;
|
|
|
|
eh = mtod(m0, struct ether_header *);
|
|
ni = ieee80211_find_txnode(ic, eh->ether_dhost);
|
|
if (ni == NULL) {
|
|
m_freem(m0);
|
|
continue;
|
|
}
|
|
BPF_MTAP(ifp, m0);
|
|
|
|
m0 = ieee80211_encap(ic, m0, ni);
|
|
if (m0 == NULL) {
|
|
ieee80211_free_node(ni);
|
|
continue;
|
|
}
|
|
|
|
if (bpf_peers_present(ic->ic_rawbpf))
|
|
bpf_mtap(ic->ic_rawbpf, m0);
|
|
|
|
if (ural_tx_data(sc, m0, ni) != 0) {
|
|
ieee80211_free_node(ni);
|
|
ifp->if_oerrors++;
|
|
break;
|
|
}
|
|
}
|
|
|
|
sc->sc_tx_timer = 5;
|
|
callout_reset(&sc->watchdog_ch, hz, ural_watchdog, sc);
|
|
}
|
|
}
|
|
|
|
static void
|
|
ural_watchdog(void *arg)
|
|
{
|
|
struct ural_softc *sc = (struct ural_softc *)arg;
|
|
|
|
RAL_LOCK(sc);
|
|
|
|
if (sc->sc_tx_timer > 0) {
|
|
if (--sc->sc_tx_timer == 0) {
|
|
device_printf(sc->sc_dev, "device timeout\n");
|
|
/*ural_init(sc); XXX needs a process context! */
|
|
sc->sc_ifp->if_oerrors++;
|
|
RAL_UNLOCK(sc);
|
|
return;
|
|
}
|
|
callout_reset(&sc->watchdog_ch, hz, ural_watchdog, sc);
|
|
}
|
|
|
|
RAL_UNLOCK(sc);
|
|
}
|
|
|
|
/*
|
|
* This function allows for fast channel switching in monitor mode (used by
|
|
* net-mgmt/kismet). In IBSS mode, we must explicitly reset the interface to
|
|
* generate a new beacon frame.
|
|
*/
|
|
static int
|
|
ural_reset(struct ifnet *ifp)
|
|
{
|
|
struct ural_softc *sc = ifp->if_softc;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
|
|
if (ic->ic_opmode != IEEE80211_M_MONITOR)
|
|
return ENETRESET;
|
|
|
|
ural_set_chan(sc, ic->ic_curchan);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ural_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
|
|
{
|
|
struct ural_softc *sc = ifp->if_softc;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
int error = 0;
|
|
|
|
RAL_LOCK(sc);
|
|
|
|
switch (cmd) {
|
|
case SIOCSIFFLAGS:
|
|
if (ifp->if_flags & IFF_UP) {
|
|
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
|
|
ural_update_promisc(sc);
|
|
else
|
|
ural_init(sc);
|
|
} else {
|
|
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
|
|
ural_stop(sc);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
error = ieee80211_ioctl(ic, cmd, data);
|
|
}
|
|
|
|
if (error == ENETRESET) {
|
|
if ((ifp->if_flags & IFF_UP) &&
|
|
(ifp->if_drv_flags & IFF_DRV_RUNNING) &&
|
|
(ic->ic_roaming != IEEE80211_ROAMING_MANUAL))
|
|
ural_init(sc);
|
|
error = 0;
|
|
}
|
|
|
|
RAL_UNLOCK(sc);
|
|
|
|
return error;
|
|
}
|
|
|
|
static void
|
|
ural_set_testmode(struct ural_softc *sc)
|
|
{
|
|
usb_device_request_t req;
|
|
usbd_status error;
|
|
|
|
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
|
|
req.bRequest = RAL_VENDOR_REQUEST;
|
|
USETW(req.wValue, 4);
|
|
USETW(req.wIndex, 1);
|
|
USETW(req.wLength, 0);
|
|
|
|
error = usbd_do_request(sc->sc_udev, &req, NULL);
|
|
if (error != 0) {
|
|
printf("%s: could not set test mode: %s\n",
|
|
device_get_nameunit(sc->sc_dev), usbd_errstr(error));
|
|
}
|
|
}
|
|
|
|
static void
|
|
ural_eeprom_read(struct ural_softc *sc, uint16_t addr, void *buf, int len)
|
|
{
|
|
usb_device_request_t req;
|
|
usbd_status error;
|
|
|
|
req.bmRequestType = UT_READ_VENDOR_DEVICE;
|
|
req.bRequest = RAL_READ_EEPROM;
|
|
USETW(req.wValue, 0);
|
|
USETW(req.wIndex, addr);
|
|
USETW(req.wLength, len);
|
|
|
|
error = usbd_do_request(sc->sc_udev, &req, buf);
|
|
if (error != 0) {
|
|
printf("%s: could not read EEPROM: %s\n",
|
|
device_get_nameunit(sc->sc_dev), usbd_errstr(error));
|
|
}
|
|
}
|
|
|
|
static uint16_t
|
|
ural_read(struct ural_softc *sc, uint16_t reg)
|
|
{
|
|
usb_device_request_t req;
|
|
usbd_status error;
|
|
uint16_t val;
|
|
|
|
req.bmRequestType = UT_READ_VENDOR_DEVICE;
|
|
req.bRequest = RAL_READ_MAC;
|
|
USETW(req.wValue, 0);
|
|
USETW(req.wIndex, reg);
|
|
USETW(req.wLength, sizeof (uint16_t));
|
|
|
|
error = usbd_do_request(sc->sc_udev, &req, &val);
|
|
if (error != 0) {
|
|
printf("%s: could not read MAC register: %s\n",
|
|
device_get_nameunit(sc->sc_dev), usbd_errstr(error));
|
|
return 0;
|
|
}
|
|
|
|
return le16toh(val);
|
|
}
|
|
|
|
static void
|
|
ural_read_multi(struct ural_softc *sc, uint16_t reg, void *buf, int len)
|
|
{
|
|
usb_device_request_t req;
|
|
usbd_status error;
|
|
|
|
req.bmRequestType = UT_READ_VENDOR_DEVICE;
|
|
req.bRequest = RAL_READ_MULTI_MAC;
|
|
USETW(req.wValue, 0);
|
|
USETW(req.wIndex, reg);
|
|
USETW(req.wLength, len);
|
|
|
|
error = usbd_do_request(sc->sc_udev, &req, buf);
|
|
if (error != 0) {
|
|
printf("%s: could not read MAC register: %s\n",
|
|
device_get_nameunit(sc->sc_dev), usbd_errstr(error));
|
|
}
|
|
}
|
|
|
|
static void
|
|
ural_write(struct ural_softc *sc, uint16_t reg, uint16_t val)
|
|
{
|
|
usb_device_request_t req;
|
|
usbd_status error;
|
|
|
|
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
|
|
req.bRequest = RAL_WRITE_MAC;
|
|
USETW(req.wValue, val);
|
|
USETW(req.wIndex, reg);
|
|
USETW(req.wLength, 0);
|
|
|
|
error = usbd_do_request(sc->sc_udev, &req, NULL);
|
|
if (error != 0) {
|
|
printf("%s: could not write MAC register: %s\n",
|
|
device_get_nameunit(sc->sc_dev), usbd_errstr(error));
|
|
}
|
|
}
|
|
|
|
static void
|
|
ural_write_multi(struct ural_softc *sc, uint16_t reg, void *buf, int len)
|
|
{
|
|
usb_device_request_t req;
|
|
usbd_status error;
|
|
|
|
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
|
|
req.bRequest = RAL_WRITE_MULTI_MAC;
|
|
USETW(req.wValue, 0);
|
|
USETW(req.wIndex, reg);
|
|
USETW(req.wLength, len);
|
|
|
|
error = usbd_do_request(sc->sc_udev, &req, buf);
|
|
if (error != 0) {
|
|
printf("%s: could not write MAC register: %s\n",
|
|
device_get_nameunit(sc->sc_dev), usbd_errstr(error));
|
|
}
|
|
}
|
|
|
|
static void
|
|
ural_bbp_write(struct ural_softc *sc, uint8_t reg, uint8_t val)
|
|
{
|
|
uint16_t tmp;
|
|
int ntries;
|
|
|
|
for (ntries = 0; ntries < 5; ntries++) {
|
|
if (!(ural_read(sc, RAL_PHY_CSR8) & RAL_BBP_BUSY))
|
|
break;
|
|
}
|
|
if (ntries == 5) {
|
|
printf("%s: could not write to BBP\n", device_get_nameunit(sc->sc_dev));
|
|
return;
|
|
}
|
|
|
|
tmp = reg << 8 | val;
|
|
ural_write(sc, RAL_PHY_CSR7, tmp);
|
|
}
|
|
|
|
static uint8_t
|
|
ural_bbp_read(struct ural_softc *sc, uint8_t reg)
|
|
{
|
|
uint16_t val;
|
|
int ntries;
|
|
|
|
val = RAL_BBP_WRITE | reg << 8;
|
|
ural_write(sc, RAL_PHY_CSR7, val);
|
|
|
|
for (ntries = 0; ntries < 5; ntries++) {
|
|
if (!(ural_read(sc, RAL_PHY_CSR8) & RAL_BBP_BUSY))
|
|
break;
|
|
}
|
|
if (ntries == 5) {
|
|
printf("%s: could not read BBP\n", device_get_nameunit(sc->sc_dev));
|
|
return 0;
|
|
}
|
|
|
|
return ural_read(sc, RAL_PHY_CSR7) & 0xff;
|
|
}
|
|
|
|
static void
|
|
ural_rf_write(struct ural_softc *sc, uint8_t reg, uint32_t val)
|
|
{
|
|
uint32_t tmp;
|
|
int ntries;
|
|
|
|
for (ntries = 0; ntries < 5; ntries++) {
|
|
if (!(ural_read(sc, RAL_PHY_CSR10) & RAL_RF_LOBUSY))
|
|
break;
|
|
}
|
|
if (ntries == 5) {
|
|
printf("%s: could not write to RF\n", device_get_nameunit(sc->sc_dev));
|
|
return;
|
|
}
|
|
|
|
tmp = RAL_RF_BUSY | RAL_RF_20BIT | (val & 0xfffff) << 2 | (reg & 0x3);
|
|
ural_write(sc, RAL_PHY_CSR9, tmp & 0xffff);
|
|
ural_write(sc, RAL_PHY_CSR10, tmp >> 16);
|
|
|
|
/* remember last written value in sc */
|
|
sc->rf_regs[reg] = val;
|
|
|
|
DPRINTFN(15, ("RF R[%u] <- 0x%05x\n", reg & 0x3, val & 0xfffff));
|
|
}
|
|
|
|
static void
|
|
ural_scan_start(struct ieee80211com *ic)
|
|
{
|
|
struct ural_softc *sc = ic->ic_ifp->if_softc;
|
|
|
|
usb_rem_task(sc->sc_udev, &sc->sc_scantask);
|
|
|
|
/* do it in a process context */
|
|
sc->sc_scan_action = URAL_SCAN_START;
|
|
usb_add_task(sc->sc_udev, &sc->sc_scantask, USB_TASKQ_DRIVER);
|
|
|
|
}
|
|
|
|
static void
|
|
ural_scan_end(struct ieee80211com *ic)
|
|
{
|
|
struct ural_softc *sc = ic->ic_ifp->if_softc;
|
|
|
|
usb_rem_task(sc->sc_udev, &sc->sc_scantask);
|
|
|
|
/* do it in a process context */
|
|
sc->sc_scan_action = URAL_SCAN_END;
|
|
usb_add_task(sc->sc_udev, &sc->sc_scantask, USB_TASKQ_DRIVER);
|
|
|
|
}
|
|
|
|
static void
|
|
ural_set_channel(struct ieee80211com *ic)
|
|
{
|
|
|
|
struct ural_softc *sc = ic->ic_ifp->if_softc;
|
|
|
|
usb_rem_task(sc->sc_udev, &sc->sc_scantask);
|
|
|
|
/* do it in a process context */
|
|
sc->sc_scan_action = URAL_SET_CHANNEL;
|
|
usb_add_task(sc->sc_udev, &sc->sc_scantask, USB_TASKQ_DRIVER);
|
|
}
|
|
|
|
static void
|
|
ural_set_chan(struct ural_softc *sc, struct ieee80211_channel *c)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
uint8_t power, tmp;
|
|
u_int i, chan;
|
|
|
|
chan = ieee80211_chan2ieee(ic, c);
|
|
if (chan == 0 || chan == IEEE80211_CHAN_ANY)
|
|
return;
|
|
|
|
if (IEEE80211_IS_CHAN_2GHZ(c))
|
|
power = min(sc->txpow[chan - 1], 31);
|
|
else
|
|
power = 31;
|
|
|
|
/* adjust txpower using ifconfig settings */
|
|
power -= (100 - ic->ic_txpowlimit) / 8;
|
|
|
|
DPRINTFN(2, ("setting channel to %u, txpower to %u\n", chan, power));
|
|
|
|
switch (sc->rf_rev) {
|
|
case RAL_RF_2522:
|
|
ural_rf_write(sc, RAL_RF1, 0x00814);
|
|
ural_rf_write(sc, RAL_RF2, ural_rf2522_r2[chan - 1]);
|
|
ural_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
|
|
break;
|
|
|
|
case RAL_RF_2523:
|
|
ural_rf_write(sc, RAL_RF1, 0x08804);
|
|
ural_rf_write(sc, RAL_RF2, ural_rf2523_r2[chan - 1]);
|
|
ural_rf_write(sc, RAL_RF3, power << 7 | 0x38044);
|
|
ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
|
|
break;
|
|
|
|
case RAL_RF_2524:
|
|
ural_rf_write(sc, RAL_RF1, 0x0c808);
|
|
ural_rf_write(sc, RAL_RF2, ural_rf2524_r2[chan - 1]);
|
|
ural_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
|
|
ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
|
|
break;
|
|
|
|
case RAL_RF_2525:
|
|
ural_rf_write(sc, RAL_RF1, 0x08808);
|
|
ural_rf_write(sc, RAL_RF2, ural_rf2525_hi_r2[chan - 1]);
|
|
ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
|
|
ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
|
|
|
|
ural_rf_write(sc, RAL_RF1, 0x08808);
|
|
ural_rf_write(sc, RAL_RF2, ural_rf2525_r2[chan - 1]);
|
|
ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
|
|
ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
|
|
break;
|
|
|
|
case RAL_RF_2525E:
|
|
ural_rf_write(sc, RAL_RF1, 0x08808);
|
|
ural_rf_write(sc, RAL_RF2, ural_rf2525e_r2[chan - 1]);
|
|
ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
|
|
ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00286 : 0x00282);
|
|
break;
|
|
|
|
case RAL_RF_2526:
|
|
ural_rf_write(sc, RAL_RF2, ural_rf2526_hi_r2[chan - 1]);
|
|
ural_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
|
|
ural_rf_write(sc, RAL_RF1, 0x08804);
|
|
|
|
ural_rf_write(sc, RAL_RF2, ural_rf2526_r2[chan - 1]);
|
|
ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
|
|
ural_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
|
|
break;
|
|
|
|
/* dual-band RF */
|
|
case RAL_RF_5222:
|
|
for (i = 0; ural_rf5222[i].chan != chan; i++);
|
|
|
|
ural_rf_write(sc, RAL_RF1, ural_rf5222[i].r1);
|
|
ural_rf_write(sc, RAL_RF2, ural_rf5222[i].r2);
|
|
ural_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
|
|
ural_rf_write(sc, RAL_RF4, ural_rf5222[i].r4);
|
|
break;
|
|
}
|
|
|
|
if (ic->ic_opmode != IEEE80211_M_MONITOR &&
|
|
(ic->ic_flags & IEEE80211_F_SCAN) == 0) {
|
|
/* set Japan filter bit for channel 14 */
|
|
tmp = ural_bbp_read(sc, 70);
|
|
|
|
tmp &= ~RAL_JAPAN_FILTER;
|
|
if (chan == 14)
|
|
tmp |= RAL_JAPAN_FILTER;
|
|
|
|
ural_bbp_write(sc, 70, tmp);
|
|
|
|
/* clear CRC errors */
|
|
ural_read(sc, RAL_STA_CSR0);
|
|
|
|
DELAY(10000);
|
|
ural_disable_rf_tune(sc);
|
|
}
|
|
|
|
/* update basic rate set */
|
|
if (IEEE80211_IS_CHAN_B(c)) {
|
|
/* 11b basic rates: 1, 2Mbps */
|
|
ural_write(sc, RAL_TXRX_CSR11, 0x3);
|
|
} else if (IEEE80211_IS_CHAN_A(c)) {
|
|
/* 11a basic rates: 6, 12, 24Mbps */
|
|
ural_write(sc, RAL_TXRX_CSR11, 0x150);
|
|
} else {
|
|
/* 11g basic rates: 1, 2, 5.5, 11, 6, 12, 24Mbps */
|
|
ural_write(sc, RAL_TXRX_CSR11, 0x15f);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Disable RF auto-tuning.
|
|
*/
|
|
static void
|
|
ural_disable_rf_tune(struct ural_softc *sc)
|
|
{
|
|
uint32_t tmp;
|
|
|
|
if (sc->rf_rev != RAL_RF_2523) {
|
|
tmp = sc->rf_regs[RAL_RF1] & ~RAL_RF1_AUTOTUNE;
|
|
ural_rf_write(sc, RAL_RF1, tmp);
|
|
}
|
|
|
|
tmp = sc->rf_regs[RAL_RF3] & ~RAL_RF3_AUTOTUNE;
|
|
ural_rf_write(sc, RAL_RF3, tmp);
|
|
|
|
DPRINTFN(2, ("disabling RF autotune\n"));
|
|
}
|
|
|
|
/*
|
|
* Refer to IEEE Std 802.11-1999 pp. 123 for more information on TSF
|
|
* synchronization.
|
|
*/
|
|
static void
|
|
ural_enable_tsf_sync(struct ural_softc *sc)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
uint16_t logcwmin, preload, tmp;
|
|
|
|
/* first, disable TSF synchronization */
|
|
ural_write(sc, RAL_TXRX_CSR19, 0);
|
|
|
|
tmp = (16 * ic->ic_bss->ni_intval) << 4;
|
|
ural_write(sc, RAL_TXRX_CSR18, tmp);
|
|
|
|
logcwmin = (ic->ic_opmode == IEEE80211_M_IBSS) ? 2 : 0;
|
|
preload = (ic->ic_opmode == IEEE80211_M_IBSS) ? 320 : 6;
|
|
tmp = logcwmin << 12 | preload;
|
|
ural_write(sc, RAL_TXRX_CSR20, tmp);
|
|
|
|
/* finally, enable TSF synchronization */
|
|
tmp = RAL_ENABLE_TSF | RAL_ENABLE_TBCN;
|
|
if (ic->ic_opmode == IEEE80211_M_STA)
|
|
tmp |= RAL_ENABLE_TSF_SYNC(1);
|
|
else
|
|
tmp |= RAL_ENABLE_TSF_SYNC(2) | RAL_ENABLE_BEACON_GENERATOR;
|
|
ural_write(sc, RAL_TXRX_CSR19, tmp);
|
|
|
|
DPRINTF(("enabling TSF synchronization\n"));
|
|
}
|
|
|
|
static void
|
|
ural_update_slot(struct ifnet *ifp)
|
|
{
|
|
struct ural_softc *sc = ifp->if_softc;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
uint16_t slottime, sifs, eifs;
|
|
|
|
slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
|
|
|
|
/*
|
|
* These settings may sound a bit inconsistent but this is what the
|
|
* reference driver does.
|
|
*/
|
|
if (ic->ic_curmode == IEEE80211_MODE_11B) {
|
|
sifs = 16 - RAL_RXTX_TURNAROUND;
|
|
eifs = 364;
|
|
} else {
|
|
sifs = 10 - RAL_RXTX_TURNAROUND;
|
|
eifs = 64;
|
|
}
|
|
|
|
ural_write(sc, RAL_MAC_CSR10, slottime);
|
|
ural_write(sc, RAL_MAC_CSR11, sifs);
|
|
ural_write(sc, RAL_MAC_CSR12, eifs);
|
|
}
|
|
|
|
static void
|
|
ural_set_txpreamble(struct ural_softc *sc)
|
|
{
|
|
uint16_t tmp;
|
|
|
|
tmp = ural_read(sc, RAL_TXRX_CSR10);
|
|
|
|
tmp &= ~RAL_SHORT_PREAMBLE;
|
|
if (sc->sc_ic.ic_flags & IEEE80211_F_SHPREAMBLE)
|
|
tmp |= RAL_SHORT_PREAMBLE;
|
|
|
|
ural_write(sc, RAL_TXRX_CSR10, tmp);
|
|
}
|
|
|
|
static void
|
|
ural_set_basicrates(struct ural_softc *sc)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
|
|
/* update basic rate set */
|
|
if (ic->ic_curmode == IEEE80211_MODE_11B) {
|
|
/* 11b basic rates: 1, 2Mbps */
|
|
ural_write(sc, RAL_TXRX_CSR11, 0x3);
|
|
} else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bss->ni_chan)) {
|
|
/* 11a basic rates: 6, 12, 24Mbps */
|
|
ural_write(sc, RAL_TXRX_CSR11, 0x150);
|
|
} else {
|
|
/* 11g basic rates: 1, 2, 5.5, 11, 6, 12, 24Mbps */
|
|
ural_write(sc, RAL_TXRX_CSR11, 0x15f);
|
|
}
|
|
}
|
|
|
|
static void
|
|
ural_set_bssid(struct ural_softc *sc, const uint8_t *bssid)
|
|
{
|
|
uint16_t tmp;
|
|
|
|
tmp = bssid[0] | bssid[1] << 8;
|
|
ural_write(sc, RAL_MAC_CSR5, tmp);
|
|
|
|
tmp = bssid[2] | bssid[3] << 8;
|
|
ural_write(sc, RAL_MAC_CSR6, tmp);
|
|
|
|
tmp = bssid[4] | bssid[5] << 8;
|
|
ural_write(sc, RAL_MAC_CSR7, tmp);
|
|
|
|
DPRINTF(("setting BSSID to %6D\n", bssid, ":"));
|
|
}
|
|
|
|
static void
|
|
ural_set_macaddr(struct ural_softc *sc, uint8_t *addr)
|
|
{
|
|
uint16_t tmp;
|
|
|
|
tmp = addr[0] | addr[1] << 8;
|
|
ural_write(sc, RAL_MAC_CSR2, tmp);
|
|
|
|
tmp = addr[2] | addr[3] << 8;
|
|
ural_write(sc, RAL_MAC_CSR3, tmp);
|
|
|
|
tmp = addr[4] | addr[5] << 8;
|
|
ural_write(sc, RAL_MAC_CSR4, tmp);
|
|
|
|
DPRINTF(("setting MAC address to %6D\n", addr, ":"));
|
|
}
|
|
|
|
static void
|
|
ural_update_promisc(struct ural_softc *sc)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ic.ic_ifp;
|
|
uint32_t tmp;
|
|
|
|
tmp = ural_read(sc, RAL_TXRX_CSR2);
|
|
|
|
tmp &= ~RAL_DROP_NOT_TO_ME;
|
|
if (!(ifp->if_flags & IFF_PROMISC))
|
|
tmp |= RAL_DROP_NOT_TO_ME;
|
|
|
|
ural_write(sc, RAL_TXRX_CSR2, tmp);
|
|
|
|
DPRINTF(("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ?
|
|
"entering" : "leaving"));
|
|
}
|
|
|
|
static const char *
|
|
ural_get_rf(int rev)
|
|
{
|
|
switch (rev) {
|
|
case RAL_RF_2522: return "RT2522";
|
|
case RAL_RF_2523: return "RT2523";
|
|
case RAL_RF_2524: return "RT2524";
|
|
case RAL_RF_2525: return "RT2525";
|
|
case RAL_RF_2525E: return "RT2525e";
|
|
case RAL_RF_2526: return "RT2526";
|
|
case RAL_RF_5222: return "RT5222";
|
|
default: return "unknown";
|
|
}
|
|
}
|
|
|
|
static void
|
|
ural_read_eeprom(struct ural_softc *sc)
|
|
{
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
uint16_t val;
|
|
|
|
ural_eeprom_read(sc, RAL_EEPROM_CONFIG0, &val, 2);
|
|
val = le16toh(val);
|
|
sc->rf_rev = (val >> 11) & 0x7;
|
|
sc->hw_radio = (val >> 10) & 0x1;
|
|
sc->led_mode = (val >> 6) & 0x7;
|
|
sc->rx_ant = (val >> 4) & 0x3;
|
|
sc->tx_ant = (val >> 2) & 0x3;
|
|
sc->nb_ant = val & 0x3;
|
|
|
|
/* read MAC address */
|
|
ural_eeprom_read(sc, RAL_EEPROM_ADDRESS, ic->ic_myaddr, 6);
|
|
|
|
/* read default values for BBP registers */
|
|
ural_eeprom_read(sc, RAL_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16);
|
|
|
|
/* read Tx power for all b/g channels */
|
|
ural_eeprom_read(sc, RAL_EEPROM_TXPOWER, sc->txpow, 14);
|
|
}
|
|
|
|
static int
|
|
ural_bbp_init(struct ural_softc *sc)
|
|
{
|
|
#define N(a) (sizeof (a) / sizeof ((a)[0]))
|
|
int i, ntries;
|
|
|
|
/* wait for BBP to be ready */
|
|
for (ntries = 0; ntries < 100; ntries++) {
|
|
if (ural_bbp_read(sc, RAL_BBP_VERSION) != 0)
|
|
break;
|
|
DELAY(1000);
|
|
}
|
|
if (ntries == 100) {
|
|
device_printf(sc->sc_dev, "timeout waiting for BBP\n");
|
|
return EIO;
|
|
}
|
|
|
|
/* initialize BBP registers to default values */
|
|
for (i = 0; i < N(ural_def_bbp); i++)
|
|
ural_bbp_write(sc, ural_def_bbp[i].reg, ural_def_bbp[i].val);
|
|
|
|
#if 0
|
|
/* initialize BBP registers to values stored in EEPROM */
|
|
for (i = 0; i < 16; i++) {
|
|
if (sc->bbp_prom[i].reg == 0xff)
|
|
continue;
|
|
ural_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
#undef N
|
|
}
|
|
|
|
static void
|
|
ural_set_txantenna(struct ural_softc *sc, int antenna)
|
|
{
|
|
uint16_t tmp;
|
|
uint8_t tx;
|
|
|
|
tx = ural_bbp_read(sc, RAL_BBP_TX) & ~RAL_BBP_ANTMASK;
|
|
if (antenna == 1)
|
|
tx |= RAL_BBP_ANTA;
|
|
else if (antenna == 2)
|
|
tx |= RAL_BBP_ANTB;
|
|
else
|
|
tx |= RAL_BBP_DIVERSITY;
|
|
|
|
/* need to force I/Q flip for RF 2525e, 2526 and 5222 */
|
|
if (sc->rf_rev == RAL_RF_2525E || sc->rf_rev == RAL_RF_2526 ||
|
|
sc->rf_rev == RAL_RF_5222)
|
|
tx |= RAL_BBP_FLIPIQ;
|
|
|
|
ural_bbp_write(sc, RAL_BBP_TX, tx);
|
|
|
|
/* update values in PHY_CSR5 and PHY_CSR6 */
|
|
tmp = ural_read(sc, RAL_PHY_CSR5) & ~0x7;
|
|
ural_write(sc, RAL_PHY_CSR5, tmp | (tx & 0x7));
|
|
|
|
tmp = ural_read(sc, RAL_PHY_CSR6) & ~0x7;
|
|
ural_write(sc, RAL_PHY_CSR6, tmp | (tx & 0x7));
|
|
}
|
|
|
|
static void
|
|
ural_set_rxantenna(struct ural_softc *sc, int antenna)
|
|
{
|
|
uint8_t rx;
|
|
|
|
rx = ural_bbp_read(sc, RAL_BBP_RX) & ~RAL_BBP_ANTMASK;
|
|
if (antenna == 1)
|
|
rx |= RAL_BBP_ANTA;
|
|
else if (antenna == 2)
|
|
rx |= RAL_BBP_ANTB;
|
|
else
|
|
rx |= RAL_BBP_DIVERSITY;
|
|
|
|
/* need to force no I/Q flip for RF 2525e and 2526 */
|
|
if (sc->rf_rev == RAL_RF_2525E || sc->rf_rev == RAL_RF_2526)
|
|
rx &= ~RAL_BBP_FLIPIQ;
|
|
|
|
ural_bbp_write(sc, RAL_BBP_RX, rx);
|
|
}
|
|
|
|
static void
|
|
ural_init(void *priv)
|
|
{
|
|
#define N(a) (sizeof (a) / sizeof ((a)[0]))
|
|
struct ural_softc *sc = priv;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
struct ural_rx_data *data;
|
|
uint16_t tmp;
|
|
usbd_status error;
|
|
int i, ntries;
|
|
|
|
ural_set_testmode(sc);
|
|
ural_write(sc, 0x308, 0x00f0); /* XXX magic */
|
|
|
|
ural_stop(sc);
|
|
|
|
/* initialize MAC registers to default values */
|
|
for (i = 0; i < N(ural_def_mac); i++)
|
|
ural_write(sc, ural_def_mac[i].reg, ural_def_mac[i].val);
|
|
|
|
/* wait for BBP and RF to wake up (this can take a long time!) */
|
|
for (ntries = 0; ntries < 100; ntries++) {
|
|
tmp = ural_read(sc, RAL_MAC_CSR17);
|
|
if ((tmp & (RAL_BBP_AWAKE | RAL_RF_AWAKE)) ==
|
|
(RAL_BBP_AWAKE | RAL_RF_AWAKE))
|
|
break;
|
|
DELAY(1000);
|
|
}
|
|
if (ntries == 100) {
|
|
printf("%s: timeout waiting for BBP/RF to wakeup\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
goto fail;
|
|
}
|
|
|
|
/* we're ready! */
|
|
ural_write(sc, RAL_MAC_CSR1, RAL_HOST_READY);
|
|
|
|
/* set basic rate set (will be updated later) */
|
|
ural_write(sc, RAL_TXRX_CSR11, 0x15f);
|
|
|
|
if (ural_bbp_init(sc) != 0)
|
|
goto fail;
|
|
|
|
ural_set_chan(sc, ic->ic_curchan);
|
|
|
|
/* clear statistic registers (STA_CSR0 to STA_CSR10) */
|
|
ural_read_multi(sc, RAL_STA_CSR0, sc->sta, sizeof sc->sta);
|
|
|
|
ural_set_txantenna(sc, sc->tx_ant);
|
|
ural_set_rxantenna(sc, sc->rx_ant);
|
|
|
|
IEEE80211_ADDR_COPY(ic->ic_myaddr, IF_LLADDR(ifp));
|
|
ural_set_macaddr(sc, ic->ic_myaddr);
|
|
|
|
/*
|
|
* Allocate xfer for AMRR statistics requests.
|
|
*/
|
|
sc->amrr_xfer = usbd_alloc_xfer(sc->sc_udev);
|
|
if (sc->amrr_xfer == NULL) {
|
|
printf("%s: could not allocate AMRR xfer\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
goto fail;
|
|
}
|
|
|
|
/*
|
|
* Open Tx and Rx USB bulk pipes.
|
|
*/
|
|
error = usbd_open_pipe(sc->sc_iface, sc->sc_tx_no, USBD_EXCLUSIVE_USE,
|
|
&sc->sc_tx_pipeh);
|
|
if (error != 0) {
|
|
printf("%s: could not open Tx pipe: %s\n",
|
|
device_get_nameunit(sc->sc_dev), usbd_errstr(error));
|
|
goto fail;
|
|
}
|
|
|
|
error = usbd_open_pipe(sc->sc_iface, sc->sc_rx_no, USBD_EXCLUSIVE_USE,
|
|
&sc->sc_rx_pipeh);
|
|
if (error != 0) {
|
|
printf("%s: could not open Rx pipe: %s\n",
|
|
device_get_nameunit(sc->sc_dev), usbd_errstr(error));
|
|
goto fail;
|
|
}
|
|
|
|
/*
|
|
* Allocate Tx and Rx xfer queues.
|
|
*/
|
|
error = ural_alloc_tx_list(sc);
|
|
if (error != 0) {
|
|
printf("%s: could not allocate Tx list\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
goto fail;
|
|
}
|
|
|
|
error = ural_alloc_rx_list(sc);
|
|
if (error != 0) {
|
|
printf("%s: could not allocate Rx list\n",
|
|
device_get_nameunit(sc->sc_dev));
|
|
goto fail;
|
|
}
|
|
|
|
/*
|
|
* Start up the receive pipe.
|
|
*/
|
|
for (i = 0; i < RAL_RX_LIST_COUNT; i++) {
|
|
data = &sc->rx_data[i];
|
|
|
|
usbd_setup_xfer(data->xfer, sc->sc_rx_pipeh, data, data->buf,
|
|
MCLBYTES, USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, ural_rxeof);
|
|
usbd_transfer(data->xfer);
|
|
}
|
|
|
|
/* kick Rx */
|
|
tmp = RAL_DROP_PHY | RAL_DROP_CRC;
|
|
if (ic->ic_opmode != IEEE80211_M_MONITOR) {
|
|
tmp |= RAL_DROP_CTL | RAL_DROP_BAD_VERSION;
|
|
if (ic->ic_opmode != IEEE80211_M_HOSTAP)
|
|
tmp |= RAL_DROP_TODS;
|
|
if (!(ifp->if_flags & IFF_PROMISC))
|
|
tmp |= RAL_DROP_NOT_TO_ME;
|
|
}
|
|
ural_write(sc, RAL_TXRX_CSR2, tmp);
|
|
|
|
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
|
|
ifp->if_drv_flags |= IFF_DRV_RUNNING;
|
|
|
|
if (ic->ic_opmode != IEEE80211_M_MONITOR) {
|
|
if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)
|
|
ieee80211_new_state(ic, IEEE80211_S_SCAN, -1);
|
|
} else
|
|
ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
|
|
|
|
return;
|
|
|
|
fail: ural_stop(sc);
|
|
#undef N
|
|
}
|
|
|
|
static void
|
|
ural_stop(void *priv)
|
|
{
|
|
struct ural_softc *sc = priv;
|
|
struct ieee80211com *ic = &sc->sc_ic;
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
|
|
sc->sc_tx_timer = 0;
|
|
ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
|
|
|
|
ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
|
|
|
|
/* disable Rx */
|
|
ural_write(sc, RAL_TXRX_CSR2, RAL_DISABLE_RX);
|
|
|
|
/* reset ASIC and BBP (but won't reset MAC registers!) */
|
|
ural_write(sc, RAL_MAC_CSR1, RAL_RESET_ASIC | RAL_RESET_BBP);
|
|
ural_write(sc, RAL_MAC_CSR1, 0);
|
|
|
|
if (sc->amrr_xfer != NULL) {
|
|
usbd_free_xfer(sc->amrr_xfer);
|
|
sc->amrr_xfer = NULL;
|
|
}
|
|
|
|
if (sc->sc_rx_pipeh != NULL) {
|
|
usbd_abort_pipe(sc->sc_rx_pipeh);
|
|
usbd_close_pipe(sc->sc_rx_pipeh);
|
|
sc->sc_rx_pipeh = NULL;
|
|
}
|
|
|
|
if (sc->sc_tx_pipeh != NULL) {
|
|
usbd_abort_pipe(sc->sc_tx_pipeh);
|
|
usbd_close_pipe(sc->sc_tx_pipeh);
|
|
sc->sc_tx_pipeh = NULL;
|
|
}
|
|
|
|
ural_free_rx_list(sc);
|
|
ural_free_tx_list(sc);
|
|
}
|
|
|
|
static int
|
|
ural_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
|
|
const struct ieee80211_bpf_params *params)
|
|
{
|
|
struct ieee80211com *ic = ni->ni_ic;
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
struct ural_softc *sc = ifp->if_softc;
|
|
|
|
/* prevent management frames from being sent if we're not ready */
|
|
if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
|
|
m_freem(m);
|
|
ieee80211_free_node(ni);
|
|
return ENETDOWN;
|
|
}
|
|
if (sc->tx_queued >= RAL_TX_LIST_COUNT) {
|
|
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
|
|
m_freem(m);
|
|
ieee80211_free_node(ni);
|
|
return EIO;
|
|
}
|
|
|
|
if (bpf_peers_present(ic->ic_rawbpf))
|
|
bpf_mtap(ic->ic_rawbpf, m);
|
|
|
|
ifp->if_opackets++;
|
|
|
|
if (params == NULL) {
|
|
/*
|
|
* Legacy path; interpret frame contents to decide
|
|
* precisely how to send the frame.
|
|
*/
|
|
if (ural_tx_mgt(sc, m, ni) != 0)
|
|
goto bad;
|
|
} else {
|
|
/*
|
|
* Caller supplied explicit parameters to use in
|
|
* sending the frame.
|
|
*/
|
|
if (ural_tx_raw(sc, m, ni, params) != 0)
|
|
goto bad;
|
|
}
|
|
sc->sc_tx_timer = 5;
|
|
callout_reset(&sc->watchdog_ch, hz, ural_watchdog, sc);
|
|
|
|
return 0;
|
|
bad:
|
|
ifp->if_oerrors++;
|
|
ieee80211_free_node(ni);
|
|
return EIO; /* XXX */
|
|
}
|
|
|
|
static void
|
|
ural_amrr_start(struct ural_softc *sc, struct ieee80211_node *ni)
|
|
{
|
|
int i;
|
|
|
|
/* clear statistic registers (STA_CSR0 to STA_CSR10) */
|
|
ural_read_multi(sc, RAL_STA_CSR0, sc->sta, sizeof sc->sta);
|
|
|
|
ieee80211_amrr_node_init(&sc->amrr, &sc->amn);
|
|
|
|
/* set rate to some reasonable initial value */
|
|
for (i = ni->ni_rates.rs_nrates - 1;
|
|
i > 0 && (ni->ni_rates.rs_rates[i] & IEEE80211_RATE_VAL) > 72;
|
|
i--);
|
|
|
|
ni->ni_txrate = i;
|
|
|
|
callout_reset(&sc->amrr_ch, hz, ural_amrr_timeout, sc);
|
|
}
|
|
|
|
static void
|
|
ural_amrr_timeout(void *arg)
|
|
{
|
|
struct ural_softc *sc = (struct ural_softc *)arg;
|
|
usb_device_request_t req;
|
|
|
|
/*
|
|
* Asynchronously read statistic registers (cleared by read).
|
|
*/
|
|
req.bmRequestType = UT_READ_VENDOR_DEVICE;
|
|
req.bRequest = RAL_READ_MULTI_MAC;
|
|
USETW(req.wValue, 0);
|
|
USETW(req.wIndex, RAL_STA_CSR0);
|
|
USETW(req.wLength, sizeof sc->sta);
|
|
|
|
usbd_setup_default_xfer(sc->amrr_xfer, sc->sc_udev, sc,
|
|
USBD_DEFAULT_TIMEOUT, &req, sc->sta, sizeof sc->sta, 0,
|
|
ural_amrr_update);
|
|
(void)usbd_transfer(sc->amrr_xfer);
|
|
}
|
|
|
|
static void
|
|
ural_amrr_update(usbd_xfer_handle xfer, usbd_private_handle priv,
|
|
usbd_status status)
|
|
{
|
|
struct ural_softc *sc = (struct ural_softc *)priv;
|
|
struct ifnet *ifp = sc->sc_ic.ic_ifp;
|
|
|
|
if (status != USBD_NORMAL_COMPLETION) {
|
|
device_printf(sc->sc_dev, "could not retrieve Tx statistics - "
|
|
"cancelling automatic rate control\n");
|
|
return;
|
|
}
|
|
|
|
/* count TX retry-fail as Tx errors */
|
|
ifp->if_oerrors += sc->sta[9];
|
|
|
|
sc->amn.amn_retrycnt =
|
|
sc->sta[7] + /* TX one-retry ok count */
|
|
sc->sta[8] + /* TX more-retry ok count */
|
|
sc->sta[9]; /* TX retry-fail count */
|
|
|
|
sc->amn.amn_txcnt =
|
|
sc->amn.amn_retrycnt +
|
|
sc->sta[6]; /* TX no-retry ok count */
|
|
|
|
ieee80211_amrr_choose(&sc->amrr, sc->sc_ic.ic_bss, &sc->amn);
|
|
|
|
callout_reset(&sc->amrr_ch, hz, ural_amrr_timeout, sc);
|
|
}
|
|
|
|
DRIVER_MODULE(ural, uhub, ural_driver, ural_devclass, usbd_driver_load, 0);
|